LTC4253ACGN#TRPBF【PDF 32/34 页】IC HOT SWAP CONTRLR -48V 16-SSOP

LTC4253/LTC4253A

32

425353aff

For more information www.linear.com/4253

GN Package

16-Lead Plastic SSOP (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1641)

APPLICATIONS INFORMATION

The peak power at the fault current limit occurs at the supply

overvoltage threshold. The fault current limited power is:

OWER(FAULT)=

V

SUPPLY

(

)

R

S

V

ACL

(V

SUPPLY

V

Z

)

R4

R3

?/DIV>

(18)

Circuit Breaker with Foldback Current Limit

Figure 17 shows the LTC4253A in a foldback current limit

application. When V

OUT

is shorted to the 48V RTN supply,

current flows through resistors R3 and R4. This results in

a voltage drop across R4 and a corresponding reduction

in voltage drop across the sense resistor, R

S

, as the ACL

amplifier servos the sense voltage between the SENSE and

V

EE

pins to about 60mV . The short-circuit current through

RS reduces as the V

OUT

voltage increases during an output

short-circuit condition. Without foldback current limiting

resistor R4, the current is limited to 3A during analog

current limit. With R4, the short-circuit current is limited

to 0.5A when V

OUT

is shorted to 71V .

PACKAGE DESCRIPTION

Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.

GN16 (SSOP) 0204

1 2 3 4 5 6 7 8

.229 .244

(5.817 6.198)

.150 .157**

(3.810 3.988)

16 15 14 13

.189 .196*

(4.801 4.978)

12 11 10 9

.016 .050

(0.406 1.270)

.015 ?004

(0.38 ?.10)

?45?/DIV>

0? 8?TYP

.007 .0098

(0.178 0.249)

.0532 .0688

(1.35 1.75)

.008 .012

(0.203 0.305)

TYP

.004 .0098

(0.102 0.249)

.0250

(0.635)

BSC

.009

(0.229)

REF

.254 MIN

RECOMMENDED SOLDER PAD LAYOUT

.150 .165

.0250 BSC

.0165 ?0015

.045 ?005

* DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

INCHES

(MILLIMETERS)

NOTE:

1. CONTROLLING DIMENSION: INCHES

2. DIMENSIONS ARE IN

3. DRAWING NOT TO SCALE

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

我的联系方式

*

相关代理商/技术参数

LTC4253ACGN-ADJ 制造商:LINER 制造商全称:Linear Technology 功能描述:-48V Hot Swap Controller with Sequencer

LTC4253ACGN-ADJ#PBF 制造商:Linear Technology 功能描述:Hot Swap Controller 1-CH 20-Pin SSOP N

LTC4253ACGN-ADJ#TRPBF 制造商:Linear Technology 功能描述:Hot Swap Controller 1-CH 20-Pin SSOP N T/R

LTC4253ACUF-ADJ#PBF 制造商:Linear Technology 功能描述:Hot Swap Controller 1-CH 20-Pin QFN EP

LTC4253ACUF-ADJ#TRPBF 制造商:Linear Technology 功能描述:Hot Swap Controller 1-CH 20-Pin QFN EP T/R

LTC4253AIGN#PBF 功能描述:IC HOT SWAP CONTRLR -48V 16-SSOP RoHS:是类别:集成电路 (IC) >> PMIC - 热交换系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关应用:通用内部开关:是电流限制:可调电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装封装/外壳:10-WFDFN 裸露焊盘供应商设备封装:10-TDFN-EP（3x3）包装:管件

LTC4253AIGN#TRPBF 功能描述:IC HOT SWAP CONTRLR -48V 16-SSOP RoHS:是类别:集成电路 (IC) >> PMIC - 热交换系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关应用:通用内部开关:是电流限制:可调电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装封装/外壳:10-WFDFN 裸露焊盘供应商设备封装:10-TDFN-EP（3x3）包装:管件

LTC4253AIGN-ADJ 制造商:LINER 制造商全称:Linear Technology 功能描述:-48V Hot Swap Controller with Sequencer

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式